Find the sum of the first 21 terms of the sequence 5, 9, 13, 17, 21, a. 945 c. 947 b. 944 d. 946

Four students are verifying that x2 + x– 12 = (x – 3)(x + 4). their conclusions are presented in the table. which student correctly verified that x2 + x – 12 = (x – 3)(x + 4)? damien lauryn rico latisha